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https://www.readbyqxmd.com/read/28538772/multiple-cavitated-nodules
#1
Edson Marchiori, Bruno Hochhegger, Gláucia Zanetti
No abstract text is available yet for this article.
March 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28533126/sonodynamic-therapy-combined-with-novel-anti-cancer-agents-sanguinarine-and-ginger-root-extract-synergistic-increase-in-toxicity-in-the-presence-of-panc-1-cells-in-vitro
#2
Matthew Prescott, James Mitchell, Stella Totti, Judy Lee, Eirini Velliou, Madeleine Bussemaker
The presence of ultrasound-induced cavitation in sonodynamic therapy (SDT) treatments has previously enhanced the activity and delivery of certain sonosensitisers in biological systems. The purpose of this work was to investigate the potential for two novel anti-cancer agents from natural derivatives, sanguinarine and ginger root extract (GRE), as sonosensitisers in an SDT treatment with in vitro PANC-1 cells. Both anti-cancer compounds had a dose-dependent cytotoxicity in the presence of PANC-1 cells. A range of six discreet ultrasound power-frequency configurations were tested and it was found that the cell death caused directly by ultrasound was likely due to the sonomechanical effects of cavitation...
May 13, 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28529631/theranostic-performance-of-acoustic-nanodroplet-vaporization-generated-bubbles-in-tumor-intertissue
#3
Yi-Ju Ho, Chih-Kuang Yeh
Solid tumors with poorly perfused regions reveal some of the treatment limitations that restrict drug delivery and therapeutic efficacy. Acoustic droplet vaporization (ADV) has been applied to directly disrupt vessels and release nanodroplets, ADV-generated bubbles (ADV-Bs), and drugs into tumor tissue. In this study, we investigated the in vivo behavior of ADV-Bs stimulated by US, and evaluated the possibility of moving intertissue ADV-Bs into the poorly perfused regions of solid tumors. Intravital imaging revealed intertissue ADV-B formation, movement, and cavitation triggered by US, where the distance of intertissue ADV-B movement was 33-99 µm per pulse...
2017: Theranostics
https://www.readbyqxmd.com/read/28529280/alternative-methods-to-visual-and-radiographic-examinations-for-approximal-caries-detection
#4
Naif Abogazalah, Masatoshi Ando
A shift in caries prevalence from occlusal surfaces to approximal surfaces has been demonstrated by epidemiological studies. Two recent meta-analyses evaluated the performance of visual examination and radiography for carious lesion detection, and reported low sensitivity but high specificity for early approximal caries detection. This suggests that the conventional methods have a higher risk of failing to detect approximal lesions. Consequently, in caries susceptible populations, there is a risk of progression of non-cavitated lesions to irreversible tooth destruction before the lesions are detected...
May 19, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28521550/detection-and-evaluation-of-renal-injury-in-burst-wave-lithotripsy-using-ultrasound-and-magnetic-resonance-imaging
#5
Philip Clark May, Wayne Kreider, Adam D Maxwell, Yak-Nam Wang, Bryan W Cunitz, Philip M Blomgren, Cynthia Johnson, Joshua Sh Park, Michael R Bailey, Donghoon Lee, Jonathan D Harper, Mathew D Sorensen
PURPOSE: Burst wave lithotripsy (BWL) is a transcutaneous technique with potential to safely and effectively fragment renal stones. Preclinical investigations of BWL require the assessment of potential renal injury. This study evaluates the capabilities of real-time ultrasound and magnetic resonance imaging (MRI) to detect and evaluate BWL injury that was induced in porcine kidneys. MATERIALS AND METHODS: Ten kidneys from five female farm pigs were treated with either a 170 kHz or 335 kHz BWL transducer using variable treatment parameters and monitored in real time with ultrasound...
May 18, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28516395/thoracoscopic-partial-resection-without-using-a-stapler-complete-republication
#6
Toshiya Toyazaki, Yasuaki Tomioka, Naohisa Chiba, Yuichiro Ueda, Yasuto Sakaguchi, Masashi Gotoh, Shinya Ishikawa, Tatsuo Nakagawa
Thoracoscopic partial pulmonary resection for small peripheral nodules without using a stapler has been introduced to our hospital. After partial resection was performed with electrocautery, two different methods of surface sealing were used: a coagulation method (C method) with Soft Coagulation alone, and a coagulation-suturing method (CS method) with Soft Coagulation combined with continuous suturing. The clinical outcomes of the two methods were retrospectively compared in this study. The C method was used in 19 lesions of 18 cases, and the CS method was used in 20 lesions of 19 cases...
May 17, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28514379/-closed-management-of-pancreatic-necrosis-complicated-by-diffuse-peritonitis
#7
E K Salakhov, A P Vlasov
AIM: To assess an efficiency of closed management of pancreatic necrosis complicated by widespread peritonitis by using of elective laparoscopic sanations with ultrasonic processing of an abdominal cavity and retroperitoneal space. MATERIAL AND METHODS: Treatment of 111 patients with pancreatic necrosis complicated by diffuse peritonitis was analyzed. Closed management was used in 41 patients (main group). Among them there were 12 patients who underwent laparoscopic sanation with ultrasonic cavitation of abdominal cavity, laparoscopic drainage of omental bag, US-assisted puncture drainage of retroperitoneal space and 29 patients after laparotomy followed by laparoscopic lavage and low-frequency ultrasound through retroperitoneal drains which were deployed during lumbotomy or under US control...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28512618/incomplete-isolated-c7-root-injury-caused-by-gunshot-wound-a-case-report
#8
Ulvi Çiftçi, Ahmet Tolgay Akıncı, Emre Delen, Doğan Güçlühan
Gunshot wounds to the spine cause severe neurological and/or internal organs damages. Although most of publications in the literature are realized on military injuries, increased civilian arming which raises civilian gunshot injuries is a new social danger causing serious health problems. In gunshot injuries to the spine; vertebral column, spinal cord and nerve roots are damaged with direct, indirect and transient cavitation related mechanisms. In this case report, we present 24 years old male patient who had severe pain and monoparesis in left upper extremity followed by gunshot injury to the spine with clinical, radiological and postoperative follow-up findings...
April 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/28510634/autologous-adipose-derived-tissue-matrix-part-i-biologic-characteristics
#9
Stephen A Schendel
Background: Autologous collagen is an ideal soft tissue filler and may serve as a matrix for stem cell implantation and growth. Procurement of autologous collagen has been limited, though, secondary to a sufficient source. Liposuction is a widely performed and could be a source of autologous collagen. Objectives: The amount of collagen and its composition in liposuctioned fat remains unknown. The purpose of this research was to characterize an adipose-derived tissue-based product created using ultrasonic cavitation and cryo-grinding...
May 16, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28510432/diels-alder-cycloaddition-of-cyclopentadiene-and-c60-at-the-extreme-high-pressure
#10
Tao Yang, Ryoichi Fukuda, Roberto Cammi, Masahiro Ehara
High-pressure Diels-Alder cycloaddition reaction of fullerenes is an important synthetic method for the thermally stable cycloadducts. High-pressure Diels-Alder cycloaddition reaction of fullerenes is an important synthetic method for the thermally stable cycloadducts. The effects of high pressure on the potential energy surfaces of Diels-Alder cycloaddition of cyclopentadiene and C60 were studied with a recently developed approach, the polarizable continuum model for extreme pressure (XP-PCM). It is revealed that the high pressure reduces the activation energies and increases reaction energies drastically, making the DA reaction more favorable...
May 16, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28509312/histological-immunohistochemical-and-ultrastructural-study-of-secondary-compressed-spinal-cord-injury-in-a-rat-model
#11
Wafaa S Ramadan, Ghada A Abdel-Hamid, Saleh Al-Karim, Aymn T Abbas
INTRODUCTION: Spinal cord injury (SCI) is a life-disrupting condition in which the first few days are the most critical. Secondary conditions remain the main causes of death for people with SCI. The response of different cell types to SCI and their role at different times in the progression of secondary degeneration are not well understood. The aim of this study was to study the histopathological changes of compressed spinal cord injury (CSCI) in a rat model. MATERIAL AND METHODS: Forty adult male Sprague-Dawley rats were divided into four groups...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28495137/early-predictors-of-rapidly-evolving-multiple-sclerosis-a-case-report
#12
Kryshani T M Fernando, Michael James
Objective The aim of this case report is to highlight some important features of rapidly evolving Multiple Sclerosis. BACKGROUND: In a small proportion of patients, Multiple Sclerosis (MS) can present as a fulminant disease characterised by severe and frequent relapses. This form of rapidly evolving MS is associated with significant morbidity and mortality. It is therefore important to identify these patients as early as possible, so that they can be managed effectively. However, due to the rarity of fulminant forms of MS, there is limited data on the natural history and management of this condition...
June 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28494517/exploration-of-peripapillary-vessel-density-in-highly-myopic-eyes-with-peripapillary-intrachoroidal-cavitation-and-its-relationship-with-ocular-parameters-using-optical-coherence-tomography-angiography
#13
Chen Qiuying, He Jiangnan, Hua Yihong, Fan Ying
IMPORTANCE: Identifying changes of peripapillary vessel density in highly myopic eyes with peripapillary intrachoroidal cavitation (PICC) by optical coherence tomography angiography (OCTA). BACKGROUND: To investigate peripapillary vessel density and its relationship with other ocular parameters in highly myopic eyes with PICC. DESIGN: This was a hospital-based, cross-sectional study. PARTICIPANTS: Thirty-five highly myopic eyes with PICC, 46 highly myopic eyes without PICC and 36 normal eyes were included in this study...
May 11, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28494264/high-yield-scalable-and-remotely-drug-loaded-neutrophil-derived-extracellular-vesicles-evs-for-anti-inflammation-therapy
#14
Jin Gao, Sihan Wang, Zhenjia Wang
Extracellular vesicles (EVs) are nanoscale membrane-formed compartments naturally secreted from cells, which are intercellular mediators regulating physiology and pathogenesis, therefore they could be a novel therapeutic carrier for targeted delivery. However, the translation of EVs is hindered by the heterogeneous composition, low yield, inefficient drug loading and unlikely scalability. Here we report a strategy to generate EVs using nitrogen cavitation (NC-EVs) that instantly disrupts neutrophils to form nanosized membrane vesicles...
May 3, 2017: Biomaterials
https://www.readbyqxmd.com/read/28492756/a-longitudinal-study-of-early-childhood-caries-and-associated-factors-in-brazilian-children
#15
Fabiane Piva, Joanna Tatith Pereira, Patrícia Blaya Luz, Lina Naomi Hashizume, Fernando Neves Hugo, Fernando Borba de Araujo
Early childhood caries (ECC) affects children all over the world and has high prevalence and severity in preschool children. Different social, biological and behavioral factors compose a network of causal factors for ECC. The aim was to evaluate the association between socioeconomic variables and caries at baseline, and the presence of Streptococcus mutans and Lactobacillus spp. microorganisms with the progression of caries lesions after two years of follow-up in a group of children. At baseline, 163 children (3-4 years old) living in the areas of 12 primary care services of the Hospital Group Conceição (GHC, Porto Alegre, RS, Brazil) were evaluated...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492432/vascular-distortion-and-dragging-related-to-apparent-tissue-contraction-in-macular-telangiectasis-type-2
#16
Richard F Spaide, Rosa D Marco, Lawrence A Yannuzzi
PURPOSE: To examine the alterations in retinal vascular morphology over an extended follow-up in eyes with macular telangiectasis Type 2 (MacTel2). METHODS: Eyes with high-quality digital photographs were evaluated. The geometric distortion in baseline images required to emulate the follow-up images was determined and vectors were made that represented the direction and magnitude of changes, to create a warp field. Optical coherence tomography and optical coherence tomography angiography evaluation of the retina was performed...
May 10, 2017: Retina
https://www.readbyqxmd.com/read/28486204/blue-light-emitting-y2o3-tm-3-nanophosphors-with-tunable-morphology-obtained-by-bio-surfactant-assisted-sonochemical-route
#17
K N Venkatachalaiah, H Nagabhushana, G P Darshan, R B Basavaraj, B Daruka Prasad, S C Sharma
Modified sonochemical route was used to prepare Y2O3:Tm(3+) (1-11mol%) nanophosphor using Mimosa pudica (M.P.) leaves extract as bio-surfactant. The prepared samples were exhibited high crystalline nature with various morphologies. This was due to sonochemical experimental reaction took place between cavitation bubbles and nearby solution. The average crystallite sizes of the prepared samples were about 15nm to 21nm as obtained from PXRD and TEM analysis. The ultraviolet visible absorption spectra showed prominent bands with an energy gap varied from 5...
April 20, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28484307/understanding-acoustic-cavitation-initiation-by-porous-nanoparticles-toward-nanoscale-agents-for-ultrasound-imaging-and-therapy
#18
Adem Yildirim, Rajarshi Chattaraj, Nicholas T Blum, Andrew P Goodwin
Ultrasound is widely applied in medical diagnosis and therapy due to its safety, high penetration depth, and low cost. In order to improve the contrast of sonographs and efficiency of the ultrasound therapy, echogenic gas bodies or droplets (with diameters from 200 nm to 10 µm) are often used, which are not very stable in the bloodstream and unable to penetrate into target tissues. Recently, it was demonstrated that nanobubbles stabilized by nanoparticles can nucleate ultrasound responsive microbubbles under reduced acoustic pressures, which is very promising for the development of nanoscale (<100 nm) ultrasound agents...
August 23, 2016: Chemistry of Materials: a Publication of the American Chemical Society
https://www.readbyqxmd.com/read/28482240/influence-of-masticatory-function-dental-caries-and-socioeconomic-status-on-the-body-mass-index-of-preschool-children
#19
Maria Eliza Soares, Maria Letícia Ramos-Jorge, Bruna Mota de Alencar, Simone Gomes Oliveira, Luciano José Pereira, Joana Ramos-Jorge
OBJECTIVE: The objective of this study was to determine the influence of masticatory function, dental caries and socioeconomic status on the body mass index (BMI) of preschool children. METHODS: A cross-sectional study was conducted with a sample of 285 children aged three to five years allocated to three groups based on the BMI: underweight, ideal weight and overweight/obesity. Socioeconomic status was determined based on the responses of parents/caregivers to a specific form...
April 28, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28479506/oct-assessment-of-non-cavitated-occlusal-carious-lesions-by-variation-of-incidence-angle-of-probe-light-and-refractive-index-matching
#20
Kyung-Jin Park, Rainer Haak, Dirk Ziebolz, Felix Krause, Schneider Hartmut
OBJECTIVES: This study evaluated (1) the detection and assessment of non-cavitated occlusal carious lesions by spectral domain optical coherence tomography (SD-OCT) and (2) the impact of varying angle of incidence (AI) of probe light and refractive index matching (RIM). METHODS: Nine extracted human molars with 18 occlusal lesions (ICDAS code 2) were visually selected. 18 regions of interest (ROI) were imaged with SD-OCT under varying AI (0°, ±5°, ±10°, ±15°) and with/without application of glycerine at 0°...
May 4, 2017: Journal of Dentistry
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